CN108097873A - DISA wire spring exhaust needles - Google Patents
DISA wire spring exhaust needles Download PDFInfo
- Publication number
- CN108097873A CN108097873A CN201810074708.XA CN201810074708A CN108097873A CN 108097873 A CN108097873 A CN 108097873A CN 201810074708 A CN201810074708 A CN 201810074708A CN 108097873 A CN108097873 A CN 108097873A
- Authority
- CN
- China
- Prior art keywords
- needle
- exhaust
- disa
- exhaust needle
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of DISA wire springs exhaust needle, the exhaust needle includes two-part structure, and the exhaust needle of the two-part structure includes the lower end needle cavity positioned at lower semisection and the upper end syringe needle positioned at upper semisection.The DISA wire spring exhaust needles of the present invention, both formation through hole exhaust passage in modeling process can have been realized, different casting are not necessarily again or same casting different position adds specific exhaust needle, the universal of exhaust needle is substantially increased, there is good conformability, effective exhaust effect, improve exhaust capacity, it reduces casting to choke fiery ratio, optimizes the exhaust gas conditions of fixed exhaust needle, reduce casting and choke the possibility of fire；Exhaust needle elongation state can meet the maximum of casting mo(u)ld top half mold thickness；Preferable stretch stability reduces the possibility of moulding drop；Exhaust needle most compressed state can meet moulding machine unpacking state up and down, it is therefore prevented that sand mold compacting difficult problem during moulding caused by fixed exhaust needle length is long.
Description
Technical field
The present invention relates to a kind of DISA wire springs exhaust needle, it is a part for horizontal casting production-line technique, is mainly used for
Type intracavity gas are quickly discharged, and belong to casting technology field.
Background technology
When the horizontal removable-flask moulding line casting technique top box mold thicknesses of current DISA are larger, portioned product is in casting process
Exhaust is not smooth, easily causes cavity part poor air permeability, is also easy to produce fiery defect of choking.
Existing exhaust technique is to be fixed the mode of exhaust needle on mold to enhance the partial exhaust gas ability of sand mold, but because
Each product part mold thickness is different, and is generally not integer, so when making fixed exhaust needle, fixed exhaust needle length is difficult
With control, when length is long, interferes casting and molding that can not even mold, the situation of exhaust can not be preferably reached when too short.This
Sample will also result in fixed exhaust gauge to sample, waste production cost.
In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.
The content of the invention
The technical problem to be solved by the present invention is to insufficient more than being directed to, a kind of DISA wire springs exhaust needle is provided, it both can be with
It realizes and through hole exhaust passage is formed in modeling process, and be not necessarily different casting or same casting different position adds given row
Air tube substantially increases the universal of exhaust needle, has good conformability, solves partial exhaust gas pin and uses difficult difficulty
Topic, adds casting interior quality；Effective exhaust effect improves exhaust capacity, reduces the fiery ratio of choking that casts, exhaust needle peace
Position is put, without limitation, optimizes the exhaust gas conditions of fixed exhaust needle, reduces casting and chokes the possibility of fire；Exhaust needle extends
State can meet the maximum of casting mo(u)ld top half mold thickness；Preferable stretch stability reduces the possibility of moulding drop；Exhaust
Pin most compressed state can meet moulding machine unpacking state up and down, it is therefore prevented that caused by fixed exhaust needle length is long during moulding
Sand mold is compacted difficult problem.
For solution more than technical problem, the present invention uses following technical scheme：DISA wire spring exhaust needles, the exhaust needle
Including two-part structure, the exhaust needle of the two-part structure is included positioned at the lower end needle cavity of lower semisection and positioned at the upper of upper semisection
Hold syringe needle.
A kind of prioritization scheme, the lower end needle cavity are provided with perforation to be internally provided with accommodating chamber at the top of the accommodating chamber
Through hole outside accommodating chamber and accommodating chamber, the diameter of section of the accommodating chamber are more than the diameter of through hole.
Further, the diameter of the through hole is slightly larger than the diameter of upper end syringe needle.
Further, one end of the upper end syringe needle leans out lower end needle cavity and sets, and the other end of the upper end syringe needle is located at
In the needle cavity of lower end and the other end of the upper end syringe needle is provided with mandril limited block.
Further, the diameter of the mandril limited block is more than through-hole diameter and the diameter of section of aperture accommodating chamber.
Further, the lower part of the upper ejector pin limited block is equipped with spring.
Further, it is provided with connected ball between the upper ejector pin limited block and spring.
Further, the bottom of the lower end needle cavity is provided with connection bolt.
Further, the spring exhaust needle is mounted on template by the connection bolt of its lower end needs the position being vented.
Further, the spring exhaust needle is mounted on by the connection bolt of its lower end around mode.
The present invention after the above technical solution is adopted, compared with prior art, has the following advantages：
1. saving exhaust needle deposit, increase exhaust needle versatility；
2. with good conformability, it is difficult to solve the problems, such as that partial exhaust gas pin uses；
3. staged exhaust needle improves the interior quality of casting.Exhaust needle uses staged through hole, and it is directly sudden and violent to reduce casting
Reveal aerial area.Add casting interior quality；
4. effective exhaust effect improves exhaust capacity, reduce and cast fiery ratio of choking.The exhaust needle riding position, does not limit to
Property, the exhaust gas conditions of fixed exhaust needle are optimized, reduces casting and chokes the possibility of fire；
5. exhaust needle elongation state can meet the maximum of our company's casting mo(u)ld top half mold thickness；
6. preferable stretch stability reduces the possibility of moulding drop；
7. exhaust needle most compressed state can meet moulding machine unpacking state up and down, it is therefore prevented that fixed exhaust needle length is long
Caused by moulding when sand mold compacting difficult problem.
The present invention is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Fig. 1 is the structure diagram under exhaust needle elongation state of the present invention；
Fig. 2 is the structure diagram under exhaust needle compressive state of the present invention；
Fig. 3 is the structure diagram before moulding in exhaust needle application process of the invention；
Fig. 4 is the structure diagram in moulding in exhaust needle application process of the invention；
In figure,
1- upper ends thimble, 2- lower ends needle cavity, 3- mandril limited blocks, 4- connected balls, 5- springs, 6- connection bolts, 10- exhaust needles,
11- moulding machine pressing plates, 12- sandbox sets, 13- templates, 14- modes.
Specific embodiment
In order to which the technical features, objects and effects to the present invention are more clearly understood, now control illustrates this hair
Bright specific embodiment.
1 DISA wire spring exhaust needles of embodiment
As shown in Figs 1-4, the present invention provides a kind of DISA wire springs exhaust needle, and the exhaust needle 10 includes two-part structure.
The exhaust needle 10 of the two-part structure includes the lower end needle cavity 2 positioned at lower semisection and the upper end pin positioned at upper semisection
First 1, the lower end needle cavity 2 is to be internally provided with the cylinder of accommodating chamber, and perforation accommodating chamber and appearance are provided at the top of the accommodating chamber
The through hole received outside chamber, the diameter of section of the accommodating chamber are more than the diameter of through hole.
The diameter of the through hole is slightly larger than the diameter of upper end syringe needle 1.
One end of the upper end syringe needle 1 leans out lower end needle cavity 2 by through hole and sets, the other end position of the upper end syringe needle 1
In lower end needle cavity 2 and the other end of the upper end syringe needle 1 is provided with mandril limited block 3, and the diameter of the mandril limited block 3 is big
In through-hole diameter and the diameter of section of aperture accommodating chamber.
The lower part of the upper ejector pin limited block 3 is equipped with spring 5, the company of being provided between the upper ejector pin limited block 3 and spring 5
Receive 4.
Equipped with spring 5, the top of 2 inner spring 5 of lower end needle cavity is provided with connected ball 4, institute for 2 inside of lower end needle cavity
Upper end syringe needle 1 is stated to be inserted into the accommodating chamber of lower end needle cavity 2 and with connected ball 4 against fixation.
The bottom of the lower end needle cavity 2 is provided with connection bolt 6.
The top structure of the lower end needle cavity 2 is the cylinder with limit function.
The spring exhaust needle 10 is mounted on template 13 by the connection bolt 6 of its lower end needs the place being vented, generally
It is preferable mounted on 14 surrounding exhaust gas effect of mode.
The exhaust needle 10 of DISA templates is made into two-part, spring 5, under natural conditions, exhaust needle are packed into inside lower semisection
10 states in elongation.During moulding, sandbox set 12 is against to template 13, and moulding machine pressing plate 11 compresses exhaust needle 10, at this time
Exhaust needle 10 is in connection status with moulding machine pressing plate 11, and moulding machine pressing plate 11, sandbox set 12, the formation of template 13 one are close at this time
Cavity is closed for filling molding sand, moulding machine pressing plate 11 carries out sand mold compacting after penetrating sand, and spring exhaust needle 10 further compresses, compression
Moulding machine pressing plate 11 and sandbox set 12 and the sand mold made remove template 13 after finishing, and it is logical that the sand mold made can form exhaust
Hole.
This hole is communicated with air, and the gas generated in casting process can smoothly be discharged by this hole, solves to cast fiery lack of choking
It falls into.
The DISA wire spring exhaust needles of the present invention save exhaust needle deposit, increase exhaust needle versatility；With good
It is difficult to solve the problems, such as that partial exhaust gas pin uses for conformability；Staged exhaust needle improves the interior quality of casting, exhaust
Pin uses staged through hole, reduces the area that casting is directly exposed in air.Add casting interior quality；Effective row
Gas effect improves exhaust capacity, reduces and casts fiery ratio of choking.The exhaust needle riding position without limitation, optimizes fixed row
The exhaust gas conditions of air tube, reduce casting choke fire possibility；Exhaust needle elongation state can meet our company's casting mo(u)ld top half and eat sand
The maximum of amount；Preferable stretch stability reduces the possibility of moulding drop；Exhaust needle most compressed state, which can meet, to be made
Unpacking state above and below type machine, it is therefore prevented that sand mold compacting difficult problem during moulding caused by fixed exhaust needle length is long.
The above is the citing of best mode for carrying out the invention, wherein the part do not addressed in detail is that this field is common
The common knowledge of technical staff.Protection scope of the present invention is subject to the content of claim, any technology based on the present invention
The equivalent transformation for enlightening and carrying out, also within protection scope of the present invention.
Claims (10)
1.DISA wire spring exhaust needles, it is characterised in that：The exhaust needle（10）Including two-part structure, the two-part structure
Exhaust needle（10）Lower end needle cavity including being located at lower semisection（2）With the upper end syringe needle positioned at upper semisection（1）.
2. DISA wire springs exhaust needle as described in claim 1, it is characterised in that：The lower end needle cavity（2）To be internally provided with
Accommodating chamber, the through hole being provided at the top of the accommodating chamber outside perforation accommodating chamber and accommodating chamber, the section of the accommodating chamber are straight
Footpath is more than the diameter of through hole.
3. DISA wire springs exhaust needle as claimed in claim 2, it is characterised in that：The diameter of the through hole is slightly larger than upper end pin
Head（1）Diameter.
4. DISA wire springs exhaust needle as described in claim 1, it is characterised in that：The upper end syringe needle（1）One end lean out
Lower end needle cavity（2）It sets, the upper end syringe needle（1）The other end be located at lower end needle cavity（2）Interior and described upper end syringe needle（1）It is another
One end is provided with mandril limited block（3）.
5. DISA wire springs exhaust needle as claimed in claim 4, it is characterised in that：The mandril limited block（3）Diameter it is big
In through-hole diameter and the diameter of section of aperture accommodating chamber.
6. DISA wire springs exhaust needle as claimed in claim 4, it is characterised in that：The upper ejector pin limited block（3）Lower part
Equipped with spring（5）.
7. DISA wire springs exhaust needle as claimed in claim 4, it is characterised in that：The upper ejector pin limited block（3）And spring
（5）Between be provided with connected ball（4）.
8. DISA wire springs exhaust needle as claimed in claim 4, it is characterised in that：The lower end needle cavity（2）Bottom set
There is connection bolt（6）.
9. DISA wire springs exhaust needle as claimed in claim 8, it is characterised in that：The spring exhaust needle（10）By under it
The connection bolt at end（6）Mounted on template（13）Need the position being vented.
10. DISA wire springs exhaust needle as claimed in claim 9, it is characterised in that：The spring exhaust needle（10）Pass through it
The connection bolt of lower end（6）Mounted on mode（14）Around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074708.XA CN108097873A (en) | 2018-01-25 | 2018-01-25 | DISA wire spring exhaust needles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074708.XA CN108097873A (en) | 2018-01-25 | 2018-01-25 | DISA wire spring exhaust needles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108097873A true CN108097873A (en) | 2018-06-01 |
Family
ID=62220311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810074708.XA Withdrawn CN108097873A (en) | 2018-01-25 | 2018-01-25 | DISA wire spring exhaust needles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108097873A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843398A (en) * | 2021-08-25 | 2021-12-28 | 东风汽车股份有限公司 | Spring ejector pin applied to exhaust hole of mold sand core |
-
2018
- 2018-01-25 CN CN201810074708.XA patent/CN108097873A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843398A (en) * | 2021-08-25 | 2021-12-28 | 东风汽车股份有限公司 | Spring ejector pin applied to exhaust hole of mold sand core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180601 |
|
| WW01 | Invention patent application withdrawn after publication |